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Miniature gas chromatographic column box

A micro gas chromatography and chromatographic column technology, applied in the field of micro gas chromatography column ovens, can solve problems such as large volume, achieve good reproducibility, expand application prospects, and direct temperature control.

Pending Publication Date: 2021-01-08
浙江中环瑞蓝科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some miniature column ovens have appeared on the market, the temperature control method still mainly relies on thermal radiation to control the temperature of the column oven, and the volume is still relatively large

Method used

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  • Miniature gas chromatographic column box

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Embodiment Construction

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Such as figure 1 As shown, this embodiment provides a micro gas chromatography column box, including:

[0026] A miniature chromatographic column box, the miniature chromatographic column box includes a first metal plate 1 with a spiral groove cavity 2, and a second metal plate 3; the first metal plate 1 and the second metal plate 3 can be arranged separately The fixing holes at its four corners are fastened and sealed; a sealing ring 4 and a metal foil thermal tape 5 are also provided between the firs...

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Abstract

The invention discloses a miniature gas chromatographic column box which comprises a miniature chromatographic column box body, a heating unit, a heat dissipation unit and a processing control unit; the miniature chromatographic column box body comprises a first metal plate with a spiral groove cavity and a second metal plate; the first metal plate and the second metal plate can be fastened, matched and sealed through fixing holes formed in the four corners of the first metal plate and the second metal plate respectively. According to the miniature gas chromatographic column box disclosed by the invention, the chromatographic column box is more miniaturized, the temperature of the chromatographic column adopts a contact type heat conduction mode, the temperature control of the chromatographic column is more direct, the temperature control precision is high, and the reproducibility is better; the miniature gas chromatographic column box can promote the miniaturization development of a chromatographic instrument, so that the portability of the gas chromatographic instrument is promoted, and the application prospect of the gas chromatographic instrument can be greatly expanded.

Description

technical field [0001] The invention relates to the technical field of gas chromatography analysis, in particular to a micro gas chromatography column box. Background technique [0002] Gas chromatography has become one of the most widely used methods for compound analysis due to its high sensitivity, stable operation, and inexpensive analytical instruments. At present, the commonly used gas chromatographs are usually large in size and are mainly used in analytical laboratories, which greatly limits the wider application environment of gas chromatography. The most important reason for the large size of the gas chromatograph is its large column oven. The general-purpose chromatographic column oven mainly controls the temperature of the air in the column oven through radiation heat conduction, and its efficiency is relatively low. However, in fact, the volume of the chromatographic column is relatively small, and the necessary temperature control of the chromatographic colum...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/30
CPCG01N30/02G01N30/30
Inventor 翁燕波张成龙刘成堂李小萍张世浩陆乐陈委赵晨晨
Owner 浙江中环瑞蓝科技发展有限公司
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